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High anti-wear and antistatic polyurethane materials

A polyurethane material, antistatic technology, applied in other chemical processes, chemical instruments and methods, etc., can solve the problems of performance change, material cost increase, etc., and achieve excellent quality, excellent antistatic property, and unique preparation process.

Inactive Publication Date: 2005-09-07
SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] These modification methods have certain effects, and most of them are realized by changing the molecular structure of polyurethane or by adding antistatic agents, but then the cost of materials is greatly increased, and the performance is more or less limited. changed, it is difficult to meet the needs of practical applications

Method used

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  • High anti-wear and antistatic polyurethane materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] First, take by weighing 100 grams of polyester polyols with a molecular weight of 2000 and 16.0 grams of TDI to prepare a polyester polyol prepolymer with an NCO radical content of 2.9%;

[0028] Weigh NDZ-401 titanate coupling agent according to 1% of the mass ratio of tetrapod zinc oxide whiskers, dissolve it in petroleum ether, make a dilute solution, and pour it into the weighed tetrapod In zinc oxide whiskers, disperse with ultrasonic waves (frequency 99HZ) at 70°C for 60 minutes. After the solvent evaporates completely, dry them in an oven at 110°C for two hours to obtain the treated tetrapod-shaped zinc oxide whiskers.

[0029] Get the prepolymer 100g that the NCO root content is 2.9%, join the tetrapod shape zinc oxide whisker (6w%) through the surface treatment in the prepolymer (preheated to 80 ℃), after mechanical stirring, use Ultrasonic dispersion was performed for 30 minutes. Then, add 90% (mass fraction of NCO root content) MOCA, stir evenly, ultrasonica...

Embodiment 2

[0033] Weigh the KH550 silane coupling agent according to 2% of the mass ratio of tetrapod zinc oxide whiskers, dissolve it in acetone, make a dilute solution, and pour it into the weighed tetrapod zinc oxide whiskers , disperse with ultrasonic waves (frequency 99HZ) at 70°C for 60 minutes, after the solvent is completely evaporated, dry in an oven at 110°C for two hours to obtain the treated tetrapod-shaped zinc oxide whiskers.

[0034] Weigh 100 g (MDI) of a polyether prepolymer with an NCO root content of 4.2%, add surface-treated tetrapod zinc oxide whiskers (0.5w%) to the prepolymer (preheated to 80° C.), After mechanical stirring, disperse by ultrasonic wave for 30 minutes. Then, add 90% (mass fraction of NCO root content) MOCA, stir evenly, ultrasonically defoam for 10 minutes, and then pour into a mold that has been preheated to 100°C. Under vacuum, heat and solidify for 3 hours, stop heating, cool to room temperature with the flat vulcanizer, and open the mold to obt...

Embodiment 3

[0036] Weigh NDZ-401 titanate coupling agent according to 2% of the mass ratio of tetrapod zinc oxide whiskers, dissolve it in petroleum ether, make a dilute solution, and pour it into the weighed tetrapod In zinc oxide whiskers, disperse with ultrasonic waves (frequency 99HZ) at 70°C for 60 minutes. After the solvent evaporates completely, dry them in an oven at 110°C for two hours to obtain the treated tetrapod-shaped zinc oxide whiskers.

[0037] Take by weighing the polyester polyol prepolymer 100g (PPDI) that NCO root content is 4.2%, join the tetrapod shape zinc oxide whisker (40w%) through surface treatment to prepolymer (preheated to 80 ℃) , after mechanical stirring, and then ultrasonic dispersion for 30 minutes. Then, add 90% (mass fraction of NCO root content) MOCA, stir evenly, ultrasonically defoam for 10 minutes, and then pour into a mold that has been preheated to 100°C. Under vacuum, heat and solidify for 3 hours, stop heating, cool to room temperature with th...

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Abstract

The invention relates to a method for preparing a new material, particularly high-wearing and antistatic polyurethane material. The polyurethane material is formed by tetr-zinc oxide(T-ZnO)whisker and polyester polyol or polyether polyol, toluene diisocyanate(TDI) or methyl diphenylene diisocyanate(MDI) or p- phenyldiisocyanate(PPDI) and 3, 3'-dichlor-4, 4'- diaminodiphenylmethane(MOCA). The product can be got from the tetr-zinc oxide whisker through casting process after the decentralized and coupling processing. The invention is characterized by the unique and simple preparing process, the superior quality, high-wearing feature, high resistance to ripping, antistatic property, ageing and heating resistance; and the lower cost compared with the traditional polyurethane material. The product can be exclusively used in machinery, aerospace engineering, light industry, architecture, textile and mine engineering and so on.

Description

technical field [0001] The invention relates to a new material preparation and production technology, in particular to a preparation and production technology of a high wear-resistant and antistatic polyurethane material. Background technique [0002] Polyurethane is a kind of elastic material with excellent properties such as wear resistance, oil resistance, tear resistance and corrosion resistance. Its wear resistance is 10-100 times that of ordinary carbon steel, and its wear resistance and tear resistance are beyond the reach of general black rubber. In comparison, it is mostly used as wear-resistant materials, such as: various high-speed rubber rollers (>1000r / min), impellers, sieve plates, transmission belts, various linings, high-pressure seals and shoe soles, etc., and has been widely used in many fields of the national economy. application. However, the rapid development of industry and technology has put forward higher requirements for it, such as: lower wear, ...

Claims

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Application Information

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IPC IPC(8): C08K3/24C08K5/54C08L75/04C09K3/16
Inventor 陈尔凡
Owner SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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